High-temperature-resistant special power cable

Abstract

The utility model belongs to the technical field of cables, and particularly relates to a high-temperature-resistant special power cable, which comprises a lead, a coating layer is arranged on the outer side of the lead, a protective layer used for protecting the interior of the cable is arranged on the outer side of the coating layer, buffer strips used for buffering external force are arranged in the protective layer at equal intervals, and the buffer strips are arranged on the outer side of the lead. The outer side of the protective layer is provided with an outer sheath used for replacing the coating layer to bear external negative effects, the assembly structure of the outer sheath is used for being disassembled and replaced when being damaged, the interiors of the upper end and the lower end of the coating layer are both provided with positioning strips used for installing the outer sheath, and the outer sides of the positioning strips are provided with protruding plates. According to the utility model, a traditional cable maintenance mode can be changed, negative effects can be prevented from being transmitted inwards when external aging, tearing and other damages are caused through an internal and external division mode, and the normal use performance of an internal structure is ensured, so that the service life and the practicability of the cable are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cables, in particular to a high temperature resistant special power cable. Background Art

[0002] Special power cables refer to cables used in special environmental conditions and for special purposes. They have unique performance and special structure. Compared with ordinary wires and cables, they have higher technical content, stricter use conditions, smaller batches and higher added value. They are mainly used to withstand high pressure conditions such as heating, cooling, chemical corrosion, mechanical vibration, high voltage, etc. in specific environments.

[0003] At present, when the existing special power cables are in use, their outer parts are subjected to external interference such as extrusion and high temperature, which causes the outer layer to age quickly and lose its original performance, which is not conducive to the long-term stable use of the cables.

[0004] In order to solve the above problems, this application proposes a high temperature resistant special power cable. Utility Model Content

[0005] The purpose of the utility model is to provide a high temperature resistant special power cable, which solves the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0007] The utility model discloses a high-temperature resistant special power cable, comprising a conductor, a coating layer is arranged on the outside of the conductor, a protective layer for protecting the inside of the cable is arranged on the outside of the coating layer, buffer strips for buffering external forces are arranged at equal intervals inside the protective layer, an outer sheath for replacing the coating layer to withstand negative external influences is arranged on the outside of the protective layer, an assembly structure of the outer sheath is used for disassembly and replacement when damaged, positioning strips for installing the outer sheath are arranged inside the upper and lower ends of the coating layer, and a protruding convex plate is arranged on the outside of the positioning strip.

[0008] Furthermore, both ends of the protective layer are provided with protruding bosses, and the bosses are aligned with the inner protruding parts of the two ends of the outer sheath.

[0009] Furthermore, the upper and lower ends of the coating layer are blocked by positioning bars to form positioning grooves during the extrusion operation, and the positioning bars are installed at the upper and lower ends of the wire during transmission.

[0010] Furthermore, protruding side panels are provided on both sides of the positioning strip, and side grooves are provided inside the side panels.

[0011] Furthermore, protruding rubber strips are provided at both ends of the outer sheath, and positioning grooves for the rubber strips to be snap-connected are provided on both sides of the protruding plate.

[0012] Furthermore, a plug block for engaging in the side groove is provided on the inner side of the boss.

[0013] Furthermore, a protruding block mechanism is provided on the inner side of the outer sheath, which is inserted between adjacent buffer strips during assembly.

[0014] The utility model has the following beneficial effects:

[0015] The utility model is equipped with a positioning strip and used in conjunction with an outer sheath. After laying the cable, the outer sheath can replace the coating layer to withstand external extrusion, high temperature, bending and other influences. When damaged, only the outer sheath needs to be replaced. In addition, the internal structure maintains stable performance during aging of the external structure. Compared with existing special power cables, the utility model has more stable performance and life, and is simple to maintain and effectively improves the practical performance of the cable.

[0016] The utility model can produce cables for extrusion, and the positioning strips are preliminarily set on the upper and lower ends of the conductors for coating together, and then the outer sheath is directly laid on the outside of the coating layer and the rubber strip is engaged with the inside of the positioning slot to be fixed. The simple structure can ensure the production efficiency and effectively improve the performance of the cable, and the applicability of the cable is improved to adapt to the harsh laying environment.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cable cross-section structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the exploded structure of the positioning bar and the conductor of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the connection between the outer sheath and the positioning strip of the utility model;

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] In the figure: 1. conductor; 2. coating layer; 3. protective layer; 4. buffer strip; 5. outer sheath; 6. positioning strip; 7. convex plate; 8. boss; 9. positioning groove; 10. side plate; 11. side groove; 12. rubber strip; 13. positioning slot; 14. plug. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] See also Figure 1-4 As shown, the utility model is a high-temperature resistant special power cable, comprising a conductor 1, a coating layer 2 is arranged on the outside of the conductor 1, a protective layer 3 for protecting the inside of the cable is arranged on the outside of the coating layer 2, buffer strips 4 for buffering external forces are arranged at equal intervals inside the protective layer 3, an outer sheath 5 for replacing the coating layer 2 to withstand external negative influences is arranged on the outside of the protective layer 3, the assembly structure of the outer sheath 5 is used for disassembly and replacement when damaged, positioning strips 6 for installing the outer sheath 5 are arranged inside the upper and lower ends of the coating layer 2, and a protruding convex plate 7 is arranged on the outside of the positioning strip 6. In this embodiment, the outer sheath 5 is also used to isolate the negative influences from the outside to prevent direct transmission inward to affect the performance of the internal structure.

[0028] Among them, both ends of the protective layer 3 are provided with protruding bosses 8, and the bosses 8 are aligned with the inner protruding parts of the two ends of the outer sheath 5. In this embodiment, the inner sides of both ends of the outer sheath 5 are provided with protruding structures, and a storage space for installing the protective layer 3 is formed between adjacent protruding structures.

[0029] Among them, the upper and lower ends of the coating layer 2 are blocked by the positioning strips 6 to form positioning grooves 9 during the extrusion operation. The positioning strips 6 are installed at the upper and lower ends of the conductor 1 when it is transmitted. In this embodiment, the positioning strips 6 are also used to enhance the cable's resistance to external forces.

[0030] Therein, protruding side panels 10 are provided on both sides of the positioning strip 6 , and side grooves 11 are provided inside the side panels 10 . In this embodiment, the side panels 10 are attached to the outer surface of the covering layer 2 .

[0031] Among them, protruding rubber strips 12 are arranged at both ends of the outer sheath 5, and positioning grooves 13 for the rubber strip 12 to be snapped and connected are opened on both sides of the protruding plate 7. In this embodiment, the rubber strip 12 is an elastic rubber structure with certain elastic deformation performance.

[0032] A plug 14 for engaging in the inside of the side groove 11 is provided on the inner side of the boss 8 . In this embodiment, the plug 14 is used to fix the protective layer 3 when assembling it.

[0033] The inner side of the outer sheath 5 is provided with a protruding block structure, which is inserted between adjacent buffer strips 4 during assembly and installation.

[0034] It can be understood that the utility model can change the traditional cable maintenance method. By dividing the cable into inside and outside, it can avoid the negative impact of external damage such as aging and tearing being transmitted to the inside, ensure the normal performance of the internal structure, and improve the service life and practicality of the cable.

[0035] A specific application of the operation process of this embodiment is as follows: first, positioning strips 6 are set at the upper and lower ends of the conveyor line of the conductor 1 to perform extrusion operations together, so that the rear convex plate 7 of the coating layer 2 protrudes outward, and then the protective layer 3 and the positioning strips 6 stored outside are successively released, so that the inner protruding part of the outer sheath 5 is inserted between adjacent buffer strips 4, and the rubber strip 12 is driven to engage with the inside of the positioning slot 13 to form a limit. After this arrangement, the assembly can be completed, so that the outer part of the cable is structured. At this time, the outer sheath 5 is used to withstand external forces and high temperatures, and negative influences are isolated to prevent them from being transmitted inward. While ensuring the internal structural performance is intact, maintenance is simple and it can be dismantled and replaced at any time.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high temperature resistant special power cable, comprising a conductor (1), characterized in that: The outer side of the conductor (1) is provided with a coating layer (2), the outer side of the coating layer (2) is provided with a protective layer (3) for protecting the inside of the cable, the inside of the protective layer (3) is provided with buffer strips (4) for buffering external forces arranged at equal intervals, the outer side of the protective layer (3) is provided with an outer sheath (5) for replacing the coating layer (2) to withstand external negative influences, the assembly structure of the outer sheath (5) is used for disassembly and replacement when damaged, and the upper and lower ends of the coating layer (2) are provided with positioning strips (6) for installing the outer sheath (5), and the outer side of the positioning strip (6) is provided with a protruding convex plate (7).

2. A high temperature resistant special power cable according to claim 1, characterized in that: Both ends of the protective layer (3) are provided with protruding bosses (8), and the bosses (8) are aligned with the inner protruding parts of the two ends of the outer sheath (5).

3. A high temperature resistant special power cable according to claim 1, characterized in that: The upper and lower ends of the coating layer (2) are blocked by positioning strips (6) to form positioning grooves (9) during the extrusion operation. The positioning strips (6) are installed at the upper and lower ends of the conductor (1) when the conductor (1) is transmitted.

4. A high temperature resistant special power cable according to claim 1, characterized in that: Protruding side panels (10) are provided on both sides of the positioning strip (6), and side grooves (11) are provided inside the side panels (10).

5. A high temperature resistant special power cable according to claim 1, characterized in that: Both ends of the outer sheath (5) are provided with protruding rubber strips (12), and both sides of the protruding plate (7) are provided with positioning slots (13) for snap-fitting and connecting the rubber strips (12).

6. A high temperature resistant special power cable according to claim 2, characterized in that: A plug (14) for engaging with the inside of the side groove (11) is provided on the inner side of the boss (8).

7. A high temperature resistant special power cable according to claim 2, characterized in that: The inner side of the outer sheath (5) is provided with a protruding block structure which is inserted between adjacent buffer strips (4) during assembly and installation.

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